Question

ex 22 23 va roooog dau coroanaaaaa​

Answer 1

Răspuns:

Explicație pas cu pas:

22

a) A={-3,-2,-1,0,1,2,3,4}

b) B={-2,-1,0,1,2,3,4,5,6}

c)C={0,1,2,3,4,5,6,7,8}

d) D={-5,-4,-3,-2,-1,0,1,2,3,4,5,6}

23

a) fals (N are elemente intregi pozitive)

b) adevarat (Z cuprinde numere intregi pozitive si negative)

c) adevarat

d) fals (N*  inseamna numere naturale nenule (fara 0) adica 1, 2, 3...infinit)

e) adevarat (nu apare 0)

f)adevarat    N⊂Z